Do i change the atmosphere locally or server sided?

Title says it all, do i change the atmosphere properties locally or server sided, i want it to change for all players

its best done from the server if you want it to change for all players

It depends if you want it changing constantly. Doing things server-side is easier, but it isn’t smooth and it will stress the server if you’re doing lots of updates constantly, such as tweening server-side.

If you’re doing something based on a server-side event, you can use FireAllClients to tell all of the clients what to change it to and have the client handle the tweening. Otherwise, doing it server-side is fine.